Finding the Fourth Proportional to 10,964.72, 16,449.51 and 5,118.14

Step by Step Solution

1. Step 1: Write the proportion equation
   10,964.72 : 16,449.51 = 5,118.14 : x
2. Step 2: Convert to fraction form
   10,964.72/16,449.51 = 5,118.14/x
3. Step 3: Cross multiply
   10,964.72x = 16,449.51 × 5,118.14
4. Step 4: Simplify right side
   10,964.72x = 84,190,895.11
5. Step 5: Solve for x
   x = 84,190,895.11/10,964.72
6. Step 6: Final answer
   x = 7,678.34